Isaac ben Samuel Adarbi was a  Sephardi rabbi and halakhic authority in Salonica. Born there between 1515 and 1520, he served for a time as rabbi of the Lisbon congregation in Salonica, with which his family was affiliated, while from around 1552 till his death (ca. 1584), he was rabbi of the Shalom congregation. The date of death on his tombstone (5337/1577) seems to be in error, as Adarbi signed a communal regulation in the year 5384/1584.

Like Samuel de Medina, Adarbi was a disciple of  Joseph Taitatzak, but the two students disagreed with each other on some halakhic matters. I…